Abstract:
OBJECTIVE:We aim to determine the relationship between leukoaraiosis and carotid artery stenosis. METHODS:Carotid-cerebral multislice computed tomography angiographies of 194 patients (mean age, 63.5 years) were retrospectively evaluated. Presence and severity of leukoaraiosis and carotid artery stenosis were compared to each other. Carotid artery stenosis was defined by the criteria of the North American Symptomatic Carotid Endarterectomy Trial; leukoaraiosis was evaluated based on the European Task Force on Age-Related White Matter Changes criteria. RESULTS:The frequency of leukoaraiosis was 52%. The correlations between age and presence and severity of leukoaraiosis as well as the degree of carotid artery stenosis were significant. There was a significant relationship between the presence of leukoaraiosis and carotid artery stenosis; also, a positive correlation was found between the severity of the leukoaraiosis and the degree of carotid artery stenosis. CONCLUSIONS:Leukoaraiosis is more common among the elderly. Significant relationship between the severity of leukoaraiosis and the degree of carotid artery stenosis points out that leukoaraiosis may be an advanced stage of atherosclerosis.
journal_name
J Comput Assist Tomogrjournal_title
Journal of computer assisted tomographyauthors
Demirtaş H,Özkaynak C,Durmaz MSdoi
10.1097/RCT.0b013e318284604esubject
Has Abstractpub_date
2013-05-01 00:00:00pages
327-32issue
3eissn
0363-8715issn
1532-3145pii
00004728-201305000-00002journal_volume
37pub_type
杂志文章abstract::Urachal carcinoma arises in the clinically silent extraperitoneal space between the bladder apex and the umbilicus. Computed tomography was used to correctly diagnose and stage urachal cancer in two patients. In one case a mass was localized to the bladder wall and immediate juxtavesical region; in the other case an a...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,评审
doi:10.1097/00004728-198811000-00014
更新日期:1988-11-01 00:00:00
abstract:PURPOSE:To evaluate the usefulness of CT in the differentiation of ruptured endometrial cysts and corpus luteal cysts. METHODS:Sixteen patients (mean age, 26 years) with a surgically proven ruptured endometrial cyst and 19 patients (mean age, 28 years) with a surgically proven corpus luteal cyst were included in this ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e31821f4bd2
更新日期:2011-07-01 00:00:00
abstract::Effects of inaccurate attenuation correction on quantitation in positron emission computed tomography were investigated by both computer simulation and theoretical analysis, followed by experimental verification with phantom measurements. It was found that, due to the finite width of detector responses, compensation o...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:
更新日期:1979-12-01 00:00:00
abstract::We describe the radiologic and pathologic findings of papillary adenocarcinoma of the lung in three patients. The tumor appeared as a peripheral lung nodule (n = 1) or a mass (n = 2) on chest radiographs. On CT, the tumor appeared as a solitary pulmonary nodule, as a mass containing internal bubble lucencies with surr...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199901000-00024
更新日期:1999-01-01 00:00:00
abstract:OBJECTIVE:To measure the distances between the internal mammary arteries (IMAs) and the sternum for determining a route for parasternal transthoracic interventions. METHODS:Coronal reconstructed multidetector computed tomography images of 202 patients were evaluated to measure the distances between the IMAs and sternu...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/01.rct.0000172673.17188.69
更新日期:2005-09-01 00:00:00
abstract:OBJECTIVE:To study the potential application of magnetic resonance imaging (MRI) for classification of retained placental tissue (RPT) in the uterus postnatally. METHODS:Twenty-two patients with clinically or pathologically proven RPT were studied. RESULTS:The thickness ratio (D1/D2) of invaded (D1) to normal (D2) my...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000791
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to classify the types of medial synovial fold of the posterior cruciate ligament (PCL) on magnetic resonance imaging (MRI) and to identify the relationships between fold type and impingement of the PCL on arthroscopy. SUBJECTS AND METHODS:Ninety-nine patients who underwent knee ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000429
更新日期:2016-09-01 00:00:00
abstract:PURPOSE:The purpose of this study was to compare quantitative and qualitative measures of aortic, cardiac, and respiratory motion artifact between high-pitch dual-source (DS) and single-source (SS) computed tomography pulmonary angiography (CTPA) protocols. METHODS:This institutional review board-approved, Health Insu...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000736
更新日期:2018-07-01 00:00:00
abstract:OBJECTIVE:The objective of the study was to characterize the enhancement pattern of hyperfunctioning parathyroid adenomas on multiphase multidetector computed tomography (CT) or 4-dimensional CT. METHODS:We retrospectively studied the enhancement patterns of 48 pathologically confirmed parathyroid adenomas with 4-dime...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e31822a1e70
更新日期:2011-09-01 00:00:00
abstract::A 42-year-old man with end-stage renal disease developed acquired renal cystic disease. The left kidney underwent tumorous degeneration necessitating nephrectomy. Eight months later acute hemorrhagic renal cyst rupture culminated in right nephrectomy. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198709000-00034
更新日期:1987-09-01 00:00:00
abstract::Extraskeletal spread of multiple myeloma is common and may cause jaundice due to hepatic infiltration. Less commonly, involvement of the pancreas may cause obstructive jaundice. We present a patient with multiple myeloma who became jaundiced. Computed tomography revealed an obstructing pancreatic mass. Aspiration biop...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:
更新日期:1985-11-01 00:00:00
abstract:OBJECTIVE:This study aimed to observe the value of computed tomography (CT) spectral imaging parameters in the diagnosis of solitary pulmonary nodules, during the contrast-enhanced early phase and late phase. MATERIALS AND METHODS:This study was approved by the institutional review board and written informed consent w...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000469
更新日期:2016-11-01 00:00:00
abstract:PURPOSE:X-Ray CT has the potential to provide precise and accurate data from which the mechanical properties of bone can be calculated. Such data would be useful in understanding the response of bone tissue to implants. Various artifacts can, however, degrade accuracy of the data. The aim of this study was to measure t...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199605000-00035
更新日期:1996-05-01 00:00:00
abstract:PURPOSE:The purpose of this work was to determine the accuracy of predicting arterial enhancement from peripheral versus central venous test bolus injections at CT angiography (CTA). METHOD:In 40 patients with abdominal aortic aneurysms, aortoiliac enhancement profiles were predicted by mathematical deconvolution of t...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-200103000-00024
更新日期:2001-03-01 00:00:00
abstract::Renal pseudotumors may be intrinsic or extrinsic to the renal parenchyma. A case in which an ectopic position of the pancreatic tail simulated a solid left renal mass on nephrotomography and ultrasonography is presented. Computed tomography was important in confirming the etiology of the mass. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198308000-00030
更新日期:1983-08-01 00:00:00
abstract::To evaluate the performance of our elastic matching system, we have created a digitized atlas from the brain of a normal young man, using 135 myelin-stained sections at 700 microns spacing. Software was written to enter and edit regional anatomic contours, which were stacked and aligned to create a three-dimensional a...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198907000-00009
更新日期:1989-07-01 00:00:00
abstract:OBJECTIVE:To prospectively investigate the feasibility of an 80-kilovolt (peak) (kVp) protocol in computed tomographic venography for varicose veins of the lower extremities by comparison with conventional 120-kVp protocol. METHODS:Attenuation values and signal-to-noise ratio of iodine contrast medium (CM) were determ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e3182621ea9
更新日期:2012-09-01 00:00:00
abstract:OBJECTIVE:Whole-brain computed tomography perfusion (CTP) data sets generated by tracer delay-insensitive singular value decomposition plus (SVD+) and standard singular value decomposition (sSVD) deconvolution algorithms were evaluated to quantify relatedness and discrepancies in CTP results. METHODS:Twenty females wi...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e31828004bb
更新日期:2013-03-01 00:00:00
abstract::Thirty-three patients with rheumatoid arthritis had computed tomographic examination of the craniocervical junction. This demonstrated soft tissue features which have not previously been described in published reports. A low attenuation lesion between the odontoid and the transverse ligament shown in 11 patients was c...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198302000-00006
更新日期:1983-02-01 00:00:00
abstract:OBJECTIVE:The aims of this study were to describe the computed tomographic features of organizing pneumonia (OP) in an oncologic patient population and to also identify features associated with lung cancer and patients undergoing hematopoietic stem cell transplant (HSCT). METHODS:In retrospective computed tomographies...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000520
更新日期:2017-05-01 00:00:00
abstract::A method is outlined for obtaining direct longitudinal computed tomograms of the forearm using a conventional total body scanner. A case is described in which longitudinal scanning helped define a soft tissue tumor of the forearm and thereby assisted in surgical planning. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198102000-00029
更新日期:1981-02-01 00:00:00
abstract::Computed tomographic and magnetic resonance (MR) findings in a case of pseudomyxoma peritonei arising from a mucoid cystadenoma of the ovary are presented. The possible diagnostic aid of MR is discussed. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198511000-00025
更新日期:1985-11-01 00:00:00
abstract:PURPOSE:The purpose of this work was to assess whether easily obtained clinical parameters can predict optimal scan delay for contrast-enhanced spiral CT of pulmonary arteries and to compare image quality between individualized contrast timing versus a fixed scan delay. METHOD:We used an individualized delay in 85 pat...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,多中心研究
doi:10.1097/00004728-200201000-00004
更新日期:2002-01-01 00:00:00
abstract::A percutaneous adrenal biopsy under CT guidance is described. The biopsy was performed after injection of physiologic saline solution into the paravertebral space, creating a wider pathway for needle insertion. This technique has been previously reported for biopsy of thoracic lesions, but in our case it was used for ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,评审
doi:10.1097/00004728-199803000-00028
更新日期:1998-03-01 00:00:00
abstract:OBJECTIVE:Our objective was to determine and report the CT findings in patients with diffuse pulmonary lymphangiomatosis (DPL). MATERIALS AND METHODS:We retrospectively reviewed the CT findings in eight patients with pathologically proven DPL. The patients ranged in age from 3 to 35 years (mean 15 years) and included ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199505000-00002
更新日期:1995-05-01 00:00:00
abstract::The magnetic resonance imaging characteristics of transient left ventricular apical ballooning are described in this report, and the features that distinguish it from acute myocardial infarction are emphasized. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/01.rct.0000148454.67697.42
更新日期:2005-01-01 00:00:00
abstract:INTRODUCTION:Patients with type II navicular ossicles have traditionally been considered to be symptomatic, whereas patients with type I and III bones are considered asymptomatic without additional relevant imaging findings. The main objective of this study is to investigate the association of type I os naviculare with...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000001089
更新日期:2020-11-01 00:00:00
abstract::Differences in signal intensity involving lobes of the liver were noted in seven cases of liver tumor. The clinical significance and possible cause of these differences in lobar intensity are discussed. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198603000-00013
更新日期:1986-03-01 00:00:00
abstract::Idiopathic muscular hypertrophy of the esophagus is a rare, benign esophageal disease, characterized by hyperplasia of all layers of the wall and, in particular, muscle layers. The authors describe the CT findings and review the relevant literature. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198811000-00026
更新日期:1988-11-01 00:00:00
abstract::In this review, our intension is to present imaging features of several categories of uncommon cases of brain infarctions including infarctions associated with neurovascular variants, infarctions along small arterial territories, and brainstem stroke syndromes. Infarctions associated with neurovascular variants includ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,评审
doi:10.1097/RCT.0000000000000865
更新日期:2019-05-01 00:00:00